Transparent cubic-ZrO2 ceramics for application as optical lenses

Optically transparent polycrystalline ZrO2 ceramics were fabricated by solid-state sintering using vacuum sintering followed by hot isostatic pressing. In the visible wavelength range (400-800 nm), the in-line transmittance of 5.6-mm thick samples reached 68% at exemplary wavelength 600 nm, which is...

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Published inJournal of the European Ceramic Society Vol. 29; no. 2; pp. 283 - 291
Main Authors Peuchert, Ulrich, Okano, Yoshio, Menke, Yvonne, Reichel, Steffen, Ikesue, Akio
Format Journal Article
LanguageEnglish
Published 01.01.2009
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Summary:Optically transparent polycrystalline ZrO2 ceramics were fabricated by solid-state sintering using vacuum sintering followed by hot isostatic pressing. In the visible wavelength range (400-800 nm), the in-line transmittance of 5.6-mm thick samples reached 68% at exemplary wavelength 600 nm, which is approximately 90% of the theoretical limit. The refractive indices of the ZrO2 optoceramics at 630 nm varied between 2.10 and 2.20, depending on TiO2 content, when used as a sintering aid. The appearance of birefringence was strongly correlated to the addition of TiO2 as a sintering additive, whereas addition of TiO2 and simultaneous increase in Y2O3 content resulted in a decrease of birefringence. 23 refs.
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ISSN:0955-2219
DOI:10.1016/j.jeurceramsoc.2008.03.028